Evolution of the Sérsic index up to z = 2.5 from JWST and HST

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Volume 694 (February 2025)

A&A, 694 (2025) A76

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Table 1.

β_λ values from the parametrization n_λ ∝ (1 + z)^β_λ.

	Full-sample		Star-forming		Quiescent

Mass bin	β_0.5 μm	β_1.5 μm	β_0.5 μm	β_1.5 μm	β_0.5 μm	β_1.5 μm
(9.5–10)	$0 . 39_{- 0.04}^{+ 0.04}$ $0.39^{+0.04}_{-0.04}$	$0 . 00_{- 0.04}^{+ 0.04}$ $0.00^{+0.04}_{-0.04}$	$0 . 45_{- 0.04}^{+ 0.04}$ $0.45^{+0.04}_{-0.04}$	$0 . 16_{- 0.04}^{+ 0.05}$ $0.16^{+0.05}_{-0.04}$	–	–
(10–10.5)	$0 . 06_{- 0.05}^{+ 0.05}$ $0.06^{+0.05}_{-0.05}$	$0 . 05_{- 0.04}^{+ 0.04}$ $0.05^{+0.04}_{-0.04}$	$0 . 34_{- 0.05}^{+ 0.05}$ $0.34^{+0.05}_{-0.05}$	$0 . 22_{- 0.04}^{+ 0.04}$ $0.22^{+0.04}_{-0.04}$	$0 . 19_{- 0.13}^{+ 0.13}$ $0.19^{+0.13}_{-0.13}$	$0 . 18_{- 0.13}^{+ 0.13}$ $0.18^{+0.13}_{-0.13}$
(10.5–11)	$- 0 . 53_{- 0.08}^{+ 0.08}$ $-0.53^{+0.08}_{-0.08}$	$- 0 . 27_{- 0.07}^{+ 0.07}$ $-0.27^{+0.07}_{-0.07}$	$- 0 . 59_{- 0.11}^{+ 0.10}$ $-0.59^{+0.10}_{-0.11}$	$- 0 . 02_{- 0.07}^{+ 0.07}$ $-0.02^{+0.07}_{-0.07}$	$- 0 . 33_{- 0.08}^{+ 0.08}$ $-0.33^{+0.08}_{-0.08}$	$- 0 . 25_{- 0.08}^{+ 0.08}$ $-0.25^{+0.08}_{-0.08}$
(11–11.5)	$- 0 . 77_{- 0.10}^{+ 0.10}$ $-0.77^{+0.10}_{-0.10}$	$- 0 . 54_{- 0.10}^{+ 0.10}$ $-0.54^{+0.10}_{-0.10}$	$- 0 . 71_{- 0.18}^{+ 0.16}$ $-0.71^{+0.16}_{-0.18}$	$- 0 . 30_{- 0.23}^{+ 0.20}$ $-0.30^{+0.20}_{-0.23}$	$- 0 . 65_{- 0.10}^{+ 0.10}$ $-0.65^{+0.10}_{-0.10}$	$- 0 . 59_{- 0.11}^{+ 0.12}$ $-0.59^{+0.12}_{-0.11}$

Notes. Values of β_λ represent the median and 16–84 percentile intervals retrieved as outlined in Sect. 3.1 for the Full-Sample (first two columns), the star-forming sample (middle two columns) and the quiescent sample (last two columns) in four stellar mass bins.

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